Cook pasta according to package directions. Meanwhile, in a large skillet, cook the sausage, sweet potatoes, green pepper and onion in oil over medium heat for 5 minutes or until vegetables are tender. Add garlic; cook 1 minute longer. Drain.
Add the tomatoes, cream, salt and pepper. Bring to a boil; remove from the heat. Drain pasta; stir into sausage mixture. Transfer to a greased 13-in. x 9-in. baking dish. Sprinkle with cheese.
Bake, uncovered, at 350° for 25-30 minutes or until bubbly. Let stand for 5 minutes before serving. Yield: 8 servings.